Virtual Box 復(fù)制生成新的主機(jī)雖然可以選擇“重新初始化所有網(wǎng)卡的 MAC 地址”旧巾，但生成的新虛擬機(jī)還保留有原來的 MAC鉴未，
在 "/etc/udev/rules.d/70-persistent-net.rules" 文件里面瘦真，可看到有兩個(gè)網(wǎng)卡信息：第一個(gè)是跟原來的虛擬主機(jī)相同俺陋，第二個(gè)是新生成的網(wǎng)卡：
# PCI device 0x8086:0x100e (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:47:1a:47", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x100e (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="08:00:27:cc:e0:5d", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
我們要把原來的信息刪去，避免和原來的主機(jī) MAC 沖突奋构，通過以下腳本來實(shí)現(xiàn)手趣，這個(gè)腳本也實(shí)現(xiàn)了以交互方式設(shè)置 IP 地址，設(shè)置主機(jī)名：
cat vb_relicate_init.sh
#!/bin/bash
#
# Init for virtual box replication.
#
# modify /etc/udev/rules.d/70-persistent-net.rules,
# set new IP, MAC in ifcfg-eth0
#
#
NET_RULES="/etc/udev/rules.d/70-persistent-net.rules"
IF_ETH0="/etc/sysconfig/network-scripts/ifcfg-eth0"
HOST_CNF="/etc/sysconfig/network"
# delete eth0 from replication 如果有兩條信息，刪掉第一條绿渣，第二條改名頂替第一條信息
if [ $(grep '^SUBSYSTEM' $NET_RULES | wc -l) -eq 2 ]; then
sed -i '/eth0/d' $NET_RULES
# set new info: NAME='eth1' -> NAME='eth0'
sed -i 's/eth1/eth0/' $NET_RULES && echo "set eht1 -> eth0"
echo "old info deleted"
else
echo "need no delete"
fi
# get NEW_MAC 獲取自動(dòng)生成的新 MAC 地址
NEW_MAC=$(grep 'eth0' $NET_RULES | cut -d',' -f4 | cut -d'=' -f3)
if [ -z "$NEW_MAC" ]; then
exit 3;
fi
# set HWADDR 在 ifcfg-eth0 文件中修改 MAC 地址
sed -i "s/HWADDR=.*/HWADDR=$NEW_MAC/" $IF_ETH0
# reload net drive module 卸載網(wǎng)卡驅(qū)動(dòng)模塊朝群，然后重新加載
modprobe -r e1000; modprobe e1000
# set new IP 手動(dòng)輸入新 IP，然后修改 ifcfg-eth0 文件中的 IPADDR 參數(shù)為新的IP
read -p "please input a new IP: " NEW_IP
sed -i "s/IPADDR=.*/IPADDR=$NEW_IP/" $IF_ETH0
echo "new MAC, IP is set to: "
grep -E "IPADDR|HWADDR" $IF_ETH0
# set new hostname 設(shè)置主機(jī)名
read -p "please input a new hostname: " NEW_HOST
sed -i "s/HOSTNAME=.*/HOSTNAME=$NEW_HOST/" $HOST_CNF
echo "new hostname is set to :"
grep "HOSTNAME" $HOST_CNF
echo "hostname update will be in effective after restart"
# restart network 重啟網(wǎng)絡(luò)
echo "restart network"
service network restart
# restart ? 是否立即重啟主機(jī)
read -p "restart now? [yes|no] " RESTART
if [ "yes" = $RESTART ]; then
shutdown -r now
else
echo "init work done, a restart is needed for new HOSTNAME in effective"
fi